Comfy and stylish the Columbia(R) Big & Tall Flex ROC(TM) Shorts are perfect for your everyday wear. The pull-on style shorts feature a cotton-stretch blend and several handy pockets including a knife pocket zip-closed security pocket and back pockets. The shorts have Omni-Shade(TM) technology that offers UPF 50 sun protection and blocks harmful Ultraviolet A and Ultraviolet B rays (UVA and UVB). The zip-fly and button closure ensures a secure fit. 98% cotton 2% elastane. Machine washable.